Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. Most thermostatic expansion valves are set for a superheat of

2. The bank of tubes at the back of domestic refrigerator is

3. For obtaining high COP, the pressure range of compressor should be

4. The condition of refrigerant after passing through the condenser in a vapour compression system is

5. A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is

6. Critical temperature is the temperature above which

7. Which of the following statement is correct?

8. A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be

9. The freezing point of sulphur dioxide is

10. Which of the following is not a desirable property of a refrigerant?


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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